2-(5-Fluoro-3-isopropylsulfanyl-1-benzofuran-2-yl)acetic acid

Abstract

The title compound, C13H13FO3S, was prepared by alkaline hydrolysis of ethyl 2-(5-fluoro-3-isopropylsulfanyl-1-benzofuran-2-yl)acetate. In the crystal, the carboxy groups are involved in intermolecular O—H...O hydrogen bonds, which link the molecules into centrosymmetric dimers. These dimers are further packed into stacks along the b axis by a slipped π–π interaction between the furan and benzene rings of neighbouring molecules [centroid–centroid distance = 3.727 (2) Å, interplanar distance = 3.465 (2) Å and slippage = 1.373 (2) Å]. The crystal structure also exhibits a short S...O contact [S...O = 3.219 (2) Å].